Screening of Cyanobacterial Peptide Toxin, Microcystins in Hyperscum Water Samples from an Inland Sub Saharan Drinking Freshwater Reservoir

Kennedy Uchenna Eguzozie; Vuyo Mavumengwana; Duduzile Nkosi; Eugenie Kayitesi; Emmanuella Chioma Nnabuo-Eguzozie

doi:10.1007/s00128-016-1916-2

Screening of Cyanobacterial Peptide Toxin, Microcystins in Hyperscum Water Samples from an Inland Sub Saharan Drinking Freshwater Reservoir

Kennedy Uchenna Eguzozie
, Vuyo Mavumengwana
, Duduzile Nkosi
, Eugenie Kayitesi
, Emmanuella Chioma Nnabuo-Eguzozie

Chemical Sciences

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

A study which probed the occurrence and quantitative variations hepatotoxic microcystin in a Sub Saharan drinking freshwater reservoir was carried out between November 2014 and March 2015. Results reveal the presence of MCYST-YR, MCYST-LR, MCYST-RR, MCYST-LA and MCYST-LF variants either in cells collected directly from bloom or toxic isolates cultured under laboratory conditions. Two minor microcystin congeners (MCYST-(H₄)YR) and (D-Asp³, Dha⁷) MCYST-RR) were identified, but not quantified. Variants dominance were in the order MCYST-LR > MCYST-RR > MCYST-YR > MCYST-LA > MCYST-LF across sampling sites. Maximum and minimum concentrations of quantified MCYSTs congeners were (489.25, 50.95 µg toxin/g DW), (98.92, 9.11 µg toxin/g DW), (140.25, 12.07 µg toxin/g DW), (56.99, 6.20 µg toxin/g DW) and (50.46, 3.65 µg toxin/g DW) for MCYST-LR, MCYST-YR, MCYST-RR, MCYST-LA and MCYST-LF, respectively. Analysis of variance (ANOVA) revealed there was a high significant difference between mean microcystin concentrations across sampling sites (p < 0.05).

Original language	English
Pages (from-to)	728-736
Number of pages	9
Journal	Bulletin of Environmental Contamination and Toxicology
Volume	97
Issue number	5
DOIs	https://doi.org/10.1007/s00128-016-1916-2
Publication status	Published - 1 Nov 2016

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 6 Clean Water and Sanitation

Keywords

Bioaccumulation
Cyanotoxin
Hazardous cyanobacterial bloom
Hepatotoxin
Solid phase extraction

ASJC Scopus subject areas

Toxicology
Pollution
Health, Toxicology and Mutagenesis

Access to Document

10.1007/s00128-016-1916-2

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@article{29402547493c4329a2dc0a9f1a4be933,

title = "Screening of Cyanobacterial Peptide Toxin, Microcystins in Hyperscum Water Samples from an Inland Sub Saharan Drinking Freshwater Reservoir",

abstract = "A study which probed the occurrence and quantitative variations hepatotoxic microcystin in a Sub Saharan drinking freshwater reservoir was carried out between November 2014 and March 2015. Results reveal the presence of MCYST-YR, MCYST-LR, MCYST-RR, MCYST-LA and MCYST-LF variants either in cells collected directly from bloom or toxic isolates cultured under laboratory conditions. Two minor microcystin congeners (MCYST-(H4)YR) and (D-Asp3, Dha7) MCYST-RR) were identified, but not quantified. Variants dominance were in the order MCYST-LR > MCYST-RR > MCYST-YR > MCYST-LA > MCYST-LF across sampling sites. Maximum and minimum concentrations of quantified MCYSTs congeners were (489.25, 50.95 µg toxin/g DW), (98.92, 9.11 µg toxin/g DW), (140.25, 12.07 µg toxin/g DW), (56.99, 6.20 µg toxin/g DW) and (50.46, 3.65 µg toxin/g DW) for MCYST-LR, MCYST-YR, MCYST-RR, MCYST-LA and MCYST-LF, respectively. Analysis of variance (ANOVA) revealed there was a high significant difference between mean microcystin concentrations across sampling sites (p < 0.05).",

keywords = "Bioaccumulation, Cyanotoxin, Hazardous cyanobacterial bloom, Hepatotoxin, Solid phase extraction",

author = "Eguzozie, \{Kennedy Uchenna\} and Vuyo Mavumengwana and Duduzile Nkosi and Eugenie Kayitesi and Nnabuo-Eguzozie, \{Emmanuella Chioma\}",

note = "Publisher Copyright: {\textcopyright} 2016, Springer Science+Business Media New York.",

year = "2016",

month = nov,

day = "1",

doi = "10.1007/s00128-016-1916-2",

language = "English",

volume = "97",

pages = "728--736",

journal = "Bulletin of Environmental Contamination and Toxicology",

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Screening of Cyanobacterial Peptide Toxin, Microcystins in Hyperscum Water Samples from an Inland Sub Saharan Drinking Freshwater Reservoir. / Eguzozie, Kennedy Uchenna; Mavumengwana, Vuyo; Nkosi, Duduzile et al.
In: Bulletin of Environmental Contamination and Toxicology, Vol. 97, No. 5, 01.11.2016, p. 728-736.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Screening of Cyanobacterial Peptide Toxin, Microcystins in Hyperscum Water Samples from an Inland Sub Saharan Drinking Freshwater Reservoir

AU - Eguzozie, Kennedy Uchenna

AU - Mavumengwana, Vuyo

AU - Nkosi, Duduzile

AU - Kayitesi, Eugenie

AU - Nnabuo-Eguzozie, Emmanuella Chioma

PY - 2016/11/1

Y1 - 2016/11/1

N2 - A study which probed the occurrence and quantitative variations hepatotoxic microcystin in a Sub Saharan drinking freshwater reservoir was carried out between November 2014 and March 2015. Results reveal the presence of MCYST-YR, MCYST-LR, MCYST-RR, MCYST-LA and MCYST-LF variants either in cells collected directly from bloom or toxic isolates cultured under laboratory conditions. Two minor microcystin congeners (MCYST-(H4)YR) and (D-Asp3, Dha7) MCYST-RR) were identified, but not quantified. Variants dominance were in the order MCYST-LR > MCYST-RR > MCYST-YR > MCYST-LA > MCYST-LF across sampling sites. Maximum and minimum concentrations of quantified MCYSTs congeners were (489.25, 50.95 µg toxin/g DW), (98.92, 9.11 µg toxin/g DW), (140.25, 12.07 µg toxin/g DW), (56.99, 6.20 µg toxin/g DW) and (50.46, 3.65 µg toxin/g DW) for MCYST-LR, MCYST-YR, MCYST-RR, MCYST-LA and MCYST-LF, respectively. Analysis of variance (ANOVA) revealed there was a high significant difference between mean microcystin concentrations across sampling sites (p < 0.05).

AB - A study which probed the occurrence and quantitative variations hepatotoxic microcystin in a Sub Saharan drinking freshwater reservoir was carried out between November 2014 and March 2015. Results reveal the presence of MCYST-YR, MCYST-LR, MCYST-RR, MCYST-LA and MCYST-LF variants either in cells collected directly from bloom or toxic isolates cultured under laboratory conditions. Two minor microcystin congeners (MCYST-(H4)YR) and (D-Asp3, Dha7) MCYST-RR) were identified, but not quantified. Variants dominance were in the order MCYST-LR > MCYST-RR > MCYST-YR > MCYST-LA > MCYST-LF across sampling sites. Maximum and minimum concentrations of quantified MCYSTs congeners were (489.25, 50.95 µg toxin/g DW), (98.92, 9.11 µg toxin/g DW), (140.25, 12.07 µg toxin/g DW), (56.99, 6.20 µg toxin/g DW) and (50.46, 3.65 µg toxin/g DW) for MCYST-LR, MCYST-YR, MCYST-RR, MCYST-LA and MCYST-LF, respectively. Analysis of variance (ANOVA) revealed there was a high significant difference between mean microcystin concentrations across sampling sites (p < 0.05).

KW - Bioaccumulation

KW - Cyanotoxin

KW - Hazardous cyanobacterial bloom

KW - Hepatotoxin

KW - Solid phase extraction

UR - https://www.scopus.com/pages/publications/84988410969

U2 - 10.1007/s00128-016-1916-2

DO - 10.1007/s00128-016-1916-2

M3 - Article

C2 - 27647015

AN - SCOPUS:84988410969

SN - 0007-4861

VL - 97

SP - 728

EP - 736

JO - Bulletin of Environmental Contamination and Toxicology

JF - Bulletin of Environmental Contamination and Toxicology

IS - 5

ER -

Screening of Cyanobacterial Peptide Toxin, Microcystins in Hyperscum Water Samples from an Inland Sub Saharan Drinking Freshwater Reservoir

Abstract

UN SDGs

Keywords

ASJC Scopus subject areas

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